2091255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 3628800

約数和(自身を除く): 1537545

約数列:

[1, 3, 5, 15, 17, 51, 59, 85, 139, 177, 255, 295, 417, 695, 885, 1003, 2085, 2363, 3009, 5015, 7089, 8201, 11815, 15045, 24603, 35445, 41005, 123015, 139417, 418251, 697085, 2091255]

約数ペア:

[(1, 2091255), (3, 697085), (5, 418251), (15, 139417), (17, 123015), (51, 41005), (59, 35445), (85, 24603), (139, 15045), (177, 11815), (255, 8201), (295, 7089), (417, 5015), (695, 3009), (885, 2363), (1003, 2085)]